• Virginia M Jones.
• Department of Pharmacy Services, University Health Care, and College of Pharmacy, University of Utah, Salt Lake City, Utah 84108, USA. ginny.jones@hsc.utah.edu
• J Pain Palliat Care Pharmacother. 2011 Jan 1;25(4):340-9.

AbstractAcetaminophen injection is an antipyretic and analgesic agent recently marketed in the United States as Ofirmev. Five published trials directly compare acetaminophen injection to drugs available in the United States. For management of pain in adults, acetaminophen injection was at least as effective as morphine injection in renal colic, oral ibuprofen after cesarean delivery, and oral acetaminophen after coronary artery bypass surgery. In children (3 to 16 years old), single-dose acetaminophen injection was similar to meperidine intramuscular (i.m.) for pain after tonsillectomy; readiness for discharge from the recovery room was shorter with acetaminophen injection (median 15 minutes) compared with meperidine i.m. (median 25 minutes), P = .005. In children (2 to 5 years old) postoperative adenotonsillectomy or adenoidectomy, the time to rescue analgesia was superior with high-dose acetaminophen rectal suppository (median 10 hours) compared with acetaminophen injection (median 7 hours), P = .01. One published trial demonstrated acetaminophen injection is noninferior to propacetamol injection for fever related to infection in pediatric patients. Dosing adjustments are not required when switching between oral and injectable acetaminophen formulations in adult and adolescent patients. Acetaminophen injection represents another agent for multimodal pain management.

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